I love this show, but just some FYI's if you are going to buy it.
Be warned that it is extremely graphic.
The only way to kill the 'walkers' is to do damage to their heads (via arrows, bullets, shovels, knives) and they do all of it! The look of the walkers is not the bad part, it's how they are put down!
The season is also shorter than most so there are only six episodes.